Website tracks celebrities – social networking fun or fan stalking?

If you’re a celebrity news junkie, a San Francisco company on Tuesday launched a website you might like – JustSpotted.com, which tracks the whereabouts of celebrities based on a mix of feeds from Twitter, Facebook and Foursquare.

On JustSpotted.com, Justin Beiber fans learned the teen singing sensation was in a Levi’s store in Vancouver, B.C., Canada, while Miley Cyrus was seen hanging out with actor Avan Jogia in Beverly Hills. And Ryan Gosling and “Gossip Girl” Blake Lively went to Disneyland.

Is JustSpotted a new tool for celebrity stalking? No way, insists company co-founder A.J. Asver.

The information is already publicly available on Twitter, Facebook and Foursquare and “it’s not real time enough where you can act on it and go to the (actual) site,” Asver said. “It’s a harmless way for fans to be closer to their idols. It’ll be like you’re living the celebrity life.”

The site aggregates tweets and updates from fans and official updates from the celebrities or their representatives into an interactive Google Map that constantly pops up the latest sightings. Asver said there are plans to add more celebrity news and other content. And an iPhone app will be available later this year.

JustSpotted was started by Asver and his fellow founders of Scoopler, a real-time search engine. They shut down Scoopler last week to concentrate on JustSpotted.

So far, there’s been no complaints from any celebrities, Asver said.

However, San Francisco’s Twitter Inc. had a problem with the site and cut the company off from its license to use the Twitter “fire hose” data feed. Twitter representatives declined to comment about JustSpotted.

But Asver said the loss of that real-time data feed, which was licensed to Scoopler, did not affect the site, which still operates off the Twitter API.